نتایج جستجو برای: aluminium oxide
تعداد نتایج: 190160 فیلتر نتایج به سال:
Antimicrobial coatings on metallic surfaces are rapidly emerging to combat bacterial pathogens. The excess use of conventional antibiotics increases the number resistant strains at an alarming rate, which in turn leads detrimental implications healthcare sector. Hence, it is great importance developing a new class material with inherent bactericidal activity and good biocompatibility. In presen...
Apart from a great variety of shaping possibilities powder metallurgical techniques offer the integration of foreign elements for static and variable data storage or to embed elements with sensory features in structural parts. The integration of foreign elements as single parts arranged in matrices or traces of foreign powders allows for storing information like brand, serial numbers or other c...
Thulium-doped optical fibre amplifiers (TDFA) are developed to extend the optical telecommunication wavelength division multiplexing (WDM) bandwidth in the so-called S-band (1460–1530 nm). The radiative transition at 1.47 μm (3H4 3F4) competes with a non-radiative multiphonon de-excitation (3H4 -3H5). The quantum efficiency of the transition of interest is then highly affected by the phonon ene...
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